I know that I know nothing.

When you want success as badly as you want the air, then you will get it. There is no other secret of success.

If thou continuous to take delight in idle argumentation thou mayest be qualified to combat with the sophists, but will never know how to live with men.

If you will be guided by me, you will make little account of Socrates, and much more of truth.

Follow the argument wherever it leads.

Nothing very new. By taking good care of yourselves you are of service to me and my family as well as yourselves, no matter what you do, even if you don't think so at present. But if you neglect yourselves and are unwilling to live, as though following tracks, in accordance with what we now say and have said in the past too, then no matter how much or how seriously you agree with me at present you will accomplish next to nothing.

God does not deal directly with man: it is by means of spirits that all the intercourse and communication of gods with men, both in waking life and in sleep, is carried on.